BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 52 44.1%
2 United States 25 21.2%
3 Germany 15 12.7%
4 France 8 6.8%
5 Russia 8 6.8%
6 Netherlands 4 3.4%
7 Romania 1 0.8%
8 Australia 1 0.8%
9 Canada 1 0.8%
10 Hong Kong 1 0.8%
11 Japan 1 0.8%
12 Mexico 1 0.8%